Kimmel, 46, revealed that he and his wife Molly McNearney named their daughter after his grandmother Jane. She weighed 6 lbs., 1 oz. and was 20 inches long at birth. "You know they come out wearing clown makeup? It's the weirdest thing," he said while showing a pic of the little one. "Her head is the size of a plum."

The doting dad joked, "I've been taking somewhere in the neighborhood of 10,000 pictures a day."

This is Kimmel's third child. He has a 22-year-old daughter and a 20-year-old son.